Older Brother Spider Demon  

, 蜘蛛の鬼（兄）

The older brother spider demon is a member of the spider family. he has a human head on his giant spider body, with facial features similar to those of the mother and older sister demon. his skin, hair, and eyes are white, while his eyes have dark red sclera with deep blue irises and pupils. despite being cruel and sadistic, he enjoys playing the role of a family member in flashbacks, taunting and abusing the mother spider demon and calling her "mother," even though she is being put through physical and verbal abuse by rui and the spider demon father.